As the coronavirus spreads through China, reports are emerging of the dystopian measures that the government there is taking to quarantine citizens. This may give you some insight into prepping for a strictly-enforced quarantine - or even what to expect from a desperate
government.
I dug up all the info I could find on the measures that China is taking to enforce quarantine, and on what life is like in Wuhan right now. Of course, it's impossible to completely vet this information, as all sources must be anonymous or face severe punishment.
The best method to avoid becoming ill is social isolation, also called "lockdown" or "self-quarantine." Here are the supplies you'll need if it comes to that.